Water tank for a cleaning robot



1.1 is a front view of a water tank for a cleaning robot showing our new design according to a first embodiment;

1.2 is a back view thereof;

1.3 is a left view thereof;

1.4 is a right view thereof;

1.5 is a top view thereof;

1.6 is a bottom view thereof;

1.7 is a front, left perspective view thereof;

1.8 is a back, left perspective view thereof; and

1.9 is a right, back perspective view thereof.

2.1 is a front view of a water tank for a cleaning robot according to a second embodiment;

2.2 is a back view thereof;

2.3 is a left view thereof;

2.4 is a right view thereof;

2.5 is a top view thereof;

2.6 is a bottom view thereof;

2.7 is a front, left perspective view thereof;

2.8 is a back, left perspective view thereof; and

2.9 is a right, back perspective view thereof. 

CLAIM The ornamental design for a water tank for a cleaning robot, as shown and described. 